The GLXD14/Beta98H Instrument Wireless System from Shure includes a GLXD1 bodypack transmitter, a GLXD4 receiver, and a Beta 98H/C cardioid clip-on instrument mic. The system operates on the 2.4GHz ISM band in the Z2 frequency band between 2400 and 2483.5MHz. Both the GLXD1 transmitter and the GLXD4 receiver feature Shure’s LINKFREQ automatic frequency management that allows them to scan for the clearest frequency available and automatically link to each other without any setup required from you besides turning both units on. With their continuous interference monitoring, both the transmitter and receiver automatically switch to the clearest frequencies available to avoid interference and dropouts. The GLXD1 includes a rechargeable battery pack that provides up to 16 hours of operation from a full charge. The system has a 200′ range of operation and can be used with 7 other GLX-D systems simultaneously.